Rod cutting device

Abstract

A rod cutting device includes a cutting head including a stationary cutting blade and a movable cutting blade for cutting off a waste part of a rod, and a waste part holding mechanism disposed near a cutting operation completing position, toward which the movable cutting chip is moved toward complete a rod cutting operation, to hold the part of the rod that has been cut off. The waste part holding mechanism employs a magnetic holding member for holding a waste part of a magnetic material or a resilient holding member for holding a waste part of a nonmagnetic material. The part of the rod that has been cut off is held and prevented from dropping by the waste part holding mechanism.

1. A rod cutting device comprising:
 a cutting head including:
 a stationary cutting blade; and 
 a movable cutting blade for cutting off an unsupported end of a rod, the rod also having a supported end, and 
 
 a waste part holding means fixed to a casing holding the stationary cutting blade and near a cutting operation completing position of the movable cutting blade, the movable cutting blade being arranged to be moved past the stationary blade and toward the waste part holding means to complete a rod cutting operation, said waste part holding means holding the unsupported end of the rod that has been cut off by its cut end part. 
 
   
   
     2. The rod cutting device according to  claim 1 , wherein the waste part holding means holds the unsupported end with its axis extended substantially in parallel to an axis of the rod. 
   
   
     3. The rod cutting device according to  claim 2 , wherein the waste part holding means comprises a pair of opposite elastic holding arms respectively having base ends connected together so as to define a rod-receiving space, and the waste part holding means is disposed such that a line extending between free ends of the elastic holding arms is perpendicular to the axis of the waste part. 
   
   
     4. The rod cutting device according to  claim 3 , wherein the elastic holding arms of the waste part holding means have the shape of a plate. 
   
   
     5. The rod cutting device according to  claim 3 , wherein the elastic holding arms of the waste part holding means have the shape of a pin. 
   
   
     6. The rod cutting device according to  claim 1 , wherein the waste part holding means comprises a magnetic member having an attracting part extending substantially perpendicularly to a moving direction of the movable cutting blade. 
   
   
     7. The rod cutting device according to  claim 6  further comprising a resilient member detachably connected to the attracting part of the magnetic member. 
   
   
     8. The rod cutting device according to  claim 1 , wherein the waste part holding means is arranged to hold the unsupported end with the movable cutting blade held in an initial position away from the waste part holding means. 
   
   
     9. The rod cutting device according to  claim 1 , wherein the movable cutting blade has an axis of cutting rotation, the rod cutting device further comprising a drive shaft for the movable cutting blade arranged to reciprocate axially, parallel to the axis of cutting rotation. 
   
   
     10. The rod cutting device according to  claim 1 , wherein the movable cutting blade is arranged to turn in a cutting direction, and shear the rod in cooperation with the stationary cutting blade to form the unsupported end of the rod, the movable cutting blade being arranged and configured to carry the unsupported end of the rod to the waste part holding means. 
   
   
     11. The rod cutting device according to  claim 1 , wherein the cutting head consists essentially of the stationary cutting blade and the movable cutting blade. 
   
   
     12. The rod cutting device according to  claim 1 , wherein the waste part holding means is located such that the unsupported end is held between the waste part holding means and the movable cutting blade when the movable cutting blade is moved to the cutting operation completing position. 
   
   
     13. The rod cutting device according to  claim 1 , wherein the rod cutting operation cuts the rod in one place. 
   
   
     14. The rod cutting device according to  claim 1 , wherein the movable cutting blade is configured to engage and carry the unsupported end cut from the rod to the waste part holding means.